Self-reduction preparation of porous multi-walled ZnCo2O4 spheres as sulfur host for lithium-sulfur battery cathodes with long cycling life and stable rate-performance

doi:10.1016/j.jelechem.2020.114860

	Self-reduction preparation of porous multi-walled ZnCo2O4 spheres as sulfur host for lithium-sulfur battery cathodes with long cycling life and stable rate-performance
	Zhong, Yan 2; Han, Tianli 2; Cheng, Mengying 2; Deng, Lin 2; Hu, Chaoquan 1,4; He, Qiya 3; Zhang, Huigang 3; Liu, Jinyun 2
刊名	JOURNAL OF ELECTROANALYTICAL CHEMISTRY
	2021
卷号	880 页码:10
关键词	Secondary battery Surface coating Composite Multi-walled structure Long-term cycling
ISSN号	1572-6657
DOI	10.1016/j.jelechem.2020.114860
英文摘要	Current lithium-sulfur (LiS) batteries have some severe issues such as shuttle effect of polysulfides and volumetric expansion of sulfur, even though their high theoretical energy density is attractive. Herein, we present a porous multi-walled ZnCo2O4 sphere prepared by a self-reduction approach as sulfur host for LiS battery cathode. During the annealing of an inorganic-organic hybrid precursor, ZnCo2O4 spheres are partially reduced by the released carbon monoxide, resulting in the formation of ZnO and CoO nanoparticles which are subsequently etched by acid, finally forming mesopores throughout the multi-walled ZnCo2O4 spheres. The multi-walled ZnCo2O4 provides sufficient space for accommodating the volumetric change of sulfur. The adsorption measurements show that the multi-walled ZnCo2O4 can adsorb the polysulfides efficiently, which suppresses the shuttle effect. After cycling 1000 times at a rate of 0.5C, the multi-walled ZnCo2O4@S composite remains a capacity of 590 mAh g(-1). The rate-performance is well recoverable during repeated tests. Moreover, the capacities at relatively low and high temperatures of - 5 and 50 degrees C are 654 and 619 mAh g(-1) after 100 cycles, respectively, indicating a potential for applications
资助项目	Science and Technology Major Project of Anhui Province[18030901093] ; Key Research and Development Program of Wuhu[2019YF07] ; Natural Science Research Project for Universities in Anhui Province[KJ2018ZD034] ; Natural Science Research Project for Universities in Anhui Province[KJ2019A0502] ; Anhui Provincial Program for Innovation and Entrepreneurship of Returnees from Overseas[2019LCX005]
WOS研究方向	Chemistry ; Electrochemistry
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000639615000007
资助机构	Science and Technology Major Project of Anhui Province ; Key Research and Development Program of Wuhu ; Natural Science Research Project for Universities in Anhui Province ; Anhui Provincial Program for Innovation and Entrepreneurship of Returnees from Overseas
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48396]
专题	中国科学院过程工程研究所
通讯作者	Hu, Chaoquan; Liu, Jinyun
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Anhui Normal Univ, Coll Chem & Mat Sci, Anhui Prov Engn Lab New Energy Vehicle Battery En, Wuhu 241002, Anhui, Peoples R China 3.Nanjing Univ, Coll Engn & Appl Sci, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 4.Nanjing IPE Inst Green Mfg Ind, Nanjing 211100, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Yan,Han, Tianli,Cheng, Mengying,et al. Self-reduction preparation of porous multi-walled ZnCo2O4 spheres as sulfur host for lithium-sulfur battery cathodes with long cycling life and stable rate-performance[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2021,880:10.
APA	Zhong, Yan.,Han, Tianli.,Cheng, Mengying.,Deng, Lin.,Hu, Chaoquan.,...&Liu, Jinyun.(2021).Self-reduction preparation of porous multi-walled ZnCo2O4 spheres as sulfur host for lithium-sulfur battery cathodes with long cycling life and stable rate-performance.JOURNAL OF ELECTROANALYTICAL CHEMISTRY,880,10.
MLA	Zhong, Yan,et al."Self-reduction preparation of porous multi-walled ZnCo2O4 spheres as sulfur host for lithium-sulfur battery cathodes with long cycling life and stable rate-performance".JOURNAL OF ELECTROANALYTICAL CHEMISTRY 880(2021):10.